Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
  • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
  • C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D233/70—One oxygen atom
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P37/00—Drugs for immunological or allergic disorders
  • A61P37/08—Antiallergic agents
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P7/00—Drugs for disorders of the blood or the extracellular fluid
  • A61P7/02—Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
  • A61P9/00—Drugs for disorders of the cardiovascular system
  • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis

Definitions

• the present invention refers to new N-substituted ⁇ -(2-oxo-4-imidazolin-1-yl) alcanoic acid derivatives having the general formula I ##STR2## wherein
• n is an integer ranging from 1 to 10, preferably ranging from 6 to 8,
• R 1 represents hydrogen, an alkali metal ion or a straight or branched hydrocarbon group having from 1 to 6 carbon atoms or the benzyl group,
• R 2 is --(CH 2 ) m --R, m being 0, 1 or 2,
• R, R 3 and R 4 which may be identical or different from each other, represent hydrogen (with the exception of R if m is zero), the unsubstituted phenyl group or the phenyl group substituted by one or several identical or differing substituents selected from the group consisting of halogen (in particular chlorine or fluorine), CH 3 --, CH 3 O--, --CF 3 , at least one of R, R 3 and R 4 being a phenyl group or the phenyl group substituted by one or several identical or differing substituents selected from the group of halogen, --CH 3 , CH 3 O--, --CF 3 .
• halogen in particular chlorine or fluorine
• the present invention further refers to processes for producing the same.
• the new compounds show interesting pharmacological properties such as antiallergic, antiasthmatic, antithrombotic, antiarteriosklerotic and antiinflammatory properties. They furthermore show antagonistic activity in respect to some physiological processes regulated by PAF (platelet activation factor) as well as excellent compatibility by the stomach and may therefor in particular used for the treatment of thrombotic, allergic, asthmatic and arteriosclerotic as well as inflammatory deseases with at the same time favourable gastrointestinal properties. Furthermore, the compounds of formula I have a low toxicity. They furthermore may be produced in combination with anticoagulantia, in particular with heparin and heparinates.
• the new N-substituted ⁇ -(2-oxo-4-imidazolin-1-yl)alcanoic acid derivatives in the form of the free acids or of the salts thereof with pharmacologically compatible bases or as esters thereof may be used as active ingredient in drugs together with usual carrier materials or diluents.
• the compounds of general formula I according to the present invention are used in dosages ranging from 0.1 to 100 mg/kg, in particular 1 to 50 mg/kg.
• the compounds according to the present invention are produced according to the invention in that a 4-imidazolin-2-one of the general formula II ##STR3## wherein R 2 , R 3 and R 4 have the same meaning as in formula I, which may be produced by known processes usual in the chemistry of heterocyclic compounds from isocyanates and ⁇ -aminoketones or, respectively, from benzoketones with substituted ureas, is subjected to reaction with an alkylating agent of the general formula III
• n and R 1 have the same meaning as in formula I and X is a halogen atom, in an organic solvent such as acetone, methyl ethyl ketone, dimethylformamide with the addition of an auxiliary base such as sodium hydride, possibly in the presence of an alkali metal iodide as catalyst.
• the compounds of formula I may also be produced by subjecting an ⁇ -(2-oxo-4-imidazolin-1-yl)-alcanoic acid or a derivative thereof having the general formula IV ##STR4## wherein R 1 , R 3 and R 4 have the same meaning as in formula I, which may be produced by the synthesis described in the German patent application No. P 29 50 478.7, to reaction with an alkylating agent of formula V
• Y has the same meaning of X in formula III or Y is another usual favourable group to be split off, for instance the N 2 -group or the radical of a sulphuric acid ester, in particular of a sulphuric acid lower alkyl ester.
• Substituted phenyl groups R 2 (or, respectively, R), R 3 and R 4 are for instance: 2-fluorophenyl, 3-fluorophenyl, 4-fluorophenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, 2-methoxyphenyl, 3-methoxyphenyl, 4-methoxyphenyl, 2.5-dimethoxyphenyl, 3.4-dimethoxyphenyl, 3.4.5-trimethoxyphenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl, 2-trifluoromethylphenyl, 3-trifluoromethylphenyl, 4-trifluoromethylphenyl.
• Alkylating agents of formula III are for instance the esters of the following ⁇ -halogeno alcanoic acids:
• chloroacetic acid bromoacetic acid, iodoacetic acid, 3-chloropropionic acid, 3-bromopropionic acid, 3-iodopropionic acid, 4-chlorobutyric acid, 4-bromobutyric acid, 4-iodobutyric acid, 5-chlorovaleric acid, 5-bromovaleric acid, 5-iodovaleric acid, 6-chlorocapronic acid, 6-bromocapronic acid, 6-iodocapronic acid, 7-chloroenanthic acid, 7-bromoenanthic acid, 7-iodoenanthic acid, 8-chlorocaprylic acid, 8-bromocaprylic acid, 8-iodocaprylic acid, 9-chloropelargonic acid, 9-bromopelargonic acid, 9-iodopelargonic acid, 10-chlorocaprinic acid, 10-bromocaprinic acid, 10-iodocaprinic acid, 11-
• alkylating agents of formula V are:
• the alcohols R 1 OH preferably are such alcohols with straight or secondary branched saturated hydrocarbon groups with 1 to 6 carbon atoms such as methanol, ethanol, propanol, isopropanol, butanol, pentanol, hexanol as well as benzylalcohols.
• the new compounds of formula I may be administered orally or by injection or rectally as suitable pharmaceutical products which may be solid or liquid, in the form of suspensions or solutions.
• suitable pharmaceutical products are tablets, powders, capsules, granules, ampoules, sirups and suppositories.
• the given melting points have been determined on a BUCHI 510 melting point determination apparatus and are not corrected.
• the IR-spektra have been determined on a PERKIN ELMER 257 and the mass spektra on a VARIAN MAT-311 A (70 eV).
• reaction product is diluted with water, extracted with ether, the ether phase is washed consequetively with water, with 5% NaHCO 3 solution and again with water.
• ethereal solution is dried over Na 2 SO 4 , the solvent is distilled off in a vacuum and the residue is purified chromatographically on silicic acid gel using chloroform as eluant.
• the product is obtained as described in example 1 from 1.35 g NaJ (80% suspension in mineral oil), 12.2 g of 1-(4-chlorophenyl)-5-phenyl-4-imidazolin-2-one, 100 cc. of DMF, 8.7 g of 7-chloroenanthic acid ethyl ester and 1.35 g of NaJ.
• Eluant in chromatographic purification hexane/ethyl acetate.
• the product is obtained as described in example 1 from 2.1 g of NaH (80% suspension in mineral oil), 18.5 g of 1-ethyl-4.5-diphenyl-4-imidazolin-2-one, 140 cc. of DMF, 13.5 g of 7-chloroenanthic acid ethyl ester and 2.1 g of NaJ.
• the product is produced as described in example 1 from 2.34 g of NaH (80% suspension in mineral oil), 18.5 g of 1.5-diphenyl-4-imidazolin-2-one, 160 cc. of DMF, 18.5 g of 8-bromocaprylic acid methyl ester and 2.34 g of NaJ.
• the product is produced as described in example 1 from 2.4 g of NaH (80% suspension in mineral oil), 21.6 g of 1-(4-chlorophenyl)-5-phenyl-4-imidazolin-2-one, 160 cc. of DMF, 19.0 g of 8-bromocaprylic acid methyl ester and 2.4 g of NaJ.
• the product is produced as described in example 1 from 1.41 g of NaH (80% suspension in mineral oil), 14.3 g of 5-phenyl-1-(3-trifluoromethylphenyl)-4-imidazolin-2-one, 100 cc. of DMF, 11.1 g of 8-bromocaprylic acid methyl ester and 1.41 g of NaJ.
• the product is produced as described in example 1 from 2.4 g of NaH (80% suspension in mineral oil), 21.3 g of 1-(4-methoxyphenyl)-5-phenyl-4-imidazolin-2-one, 160 cc. of DMF 19 g of 8-bromocaprylic acid methyl ester and 2.4 g of NaJ. Eluant in chromatographic purification: hexane/ethyl acetate.
• the product is produced as described in example 1 from 2.25 g of NaH (80% suspension in mineral oil), 18.7 g of 1-(4-methylphenyl)-5-phenyl-4-imidazolin-2-one, 150 cc. of DMF, 17.8 g of 8-bromocaprylic acid methyl ester and 2.25 g of NaJ.
• the product is product as described in example 1 from 2.16 g of NaH (80% suspension in mineral oil), 18.3 g of 1-(4-Fluorophenyl)-5-phenyl-4-imidazolin-2-one, 150 cc. of DMF, 17.1 g of 8-bromocaprylic acid methyl ester and 2.16 g of NaJ.
• the product is produced as described in example 1 from 1.05 g of NaH (80% suspension in mineral oil), 9.5 g of 5-(4-chlorophenyl)-1-phenyl-4-imidazolin-2-one, 70 cc. of DMF, 8.3 g of 8-bromocaprylic acid methyl ester and 1.05 g of NaJ.
• the product is produced as described in example 1 from 1.8 g of NaH (80% suspension in mineral oil), 15 g of 1-benzyl-5-phenyl-4-imidazolin-2-one, 120 cc. of DMF, 14.2 g of 8-bromocaprylic acid methyl ester and 1.8 g of NaJ.
• the product is produced as described in example 1 from 1.2 g of NaH (80% suspension in mineral oil), 12 g of 1.4.5-triphenyl-4-imidazolin-2-one, 80 cc. of DMF, 9.5 g of 8-bromocaprylic acid methyl ester and 1.2 g of NaJ.
• the product is produced as described in example 1 from 0.63 of NaH (80% suspension in mineral oil), 5.9 g of 4.5-bis-(2-fluorophenyl)-1-methyl-4-imidazolin-2-one, 40 cc. of DMF, 5.0 g of 8-bromo caprylic methyl ester and 0.63 g of NaJ.
• the product is produced as described in example 1 from 2.4 g of NaH (80% suspension in mineral oil), 20 g of 4.5-diphenyl-1-methyl-4-imidazolin-2-one, 160 cc. of DMF, 19 g of 8-bromocaprylic acid methyl ester and 2.4 g of NaJ.
• the product is produced as described in example 1 from 1.35 g of NaH (80% suspension in mineral oil), 12.2 g of 1-(4-chlorophenyl)-5-phenyl-4-imidazolin-2-one, 90 cc. of DMF, 11.3 g of 9-bromo-nonanic acid methyl ester and 1.35 g of NaJ.
• the product is produced as described in example 1 from 0.45 g of NaH (80% suspension in mineral oil), 4 g of 1-ethyl-4.5-diphenyl-4-imidazolin-2-one, 30 cc. of DMF, 4.2 g of 11-bromoundecanoic acid methyl ester and 0.45 g of NaJ.
• the oil is dissolved in a small amount of chloroform, the chloroform phase is washed with water several times and is finally extracted with 5% soda lye.
• the soda lye extract is washed with chloroform, the aqueous solution is acidified with dilute hydrochloric acid and is separated from the acid precipitated as an oil. Purification occurs by chromatography on silicic acid gel using a mixture of chloroform and methanol as eluant.
• the product is produced as described in example 18 from 13.5 g of 7-[3-(4-chlorophenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] enanthic acid ethel ester, 1.28 g of NaOH in 60 cc. of ethanol.
• the product is produced as described in example 18 from 12.3 g of 7-(3-ethyl-4.5-diphenyl-2-oxo-4-imidazolin-1-yl) enanthic acid ethyl ester and 1.16 g of NaOH in 60 cc. of ethanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 8.2 g of 8-(3.4-diphenyl-2-oxo-4-imidazolin-1-yl) caprylic acid methyl ester and 0.84 g of NaOH in 20 cc. of ethanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 20 g of 8-[3-(4-chlorophenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] caprylic acid methyl ester and 1.88 g of NaOH in 100 cc. of methanol. Further purification by chromatography on silicic acid gel using a mixture of hexane annd ethyl acetate as eluant.
• the product is produced as described in example 18 from 6.9 g of 8-[2-oxo-4-phenyl-3-(3-trifluoromethyl-phenyl)-4-imidazolin-1-yl] caprylic acid methyl ester and 0.66 g of NaOH in 30 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 18.8 g of 8-[3-(4-methoxyphenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] caprylic acid methyl ester and 2.12 g of NaOH in 100 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 18.1 g of 8-[3-(4-methylphenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] caprylic acid methyl ester and 1.8 g of NaOH in 90 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 16.4 g of 8-[3-(4-fluorophenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] caprylic acid methyl ester and 1.6 g of NaOH in 80 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 6.1 g of 8-[4-(4-chlorophenyl)-2-oxo-3-phenyl-4-imidazolin-1-yl] caprylic acid ethyl ester and 0.56 g of NaOH in 30 cc. of methanol. The product is finally boiled in a small amount of ether, filtered off with suction and dried.
• the product is produced as described in example 18 from 20.3 g of 8-(3-benzyl-2-oxo-4-phenyl-4-imidazolin-1-yl) caprylic acid methyl ester. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is prepared as described in example 18 from 7.5 g of 8-(2-oxo-3.4.5-triphenyl-4-imidazolin-1-yl)-caprylic acid methyl ester and 0.64 g of NaOH in 30 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 5.2 g of 8-[4.5-bis-(2-fluorophenyl)-3-methyl-2-oxo-4-imidazolin-1-yl] caprylic acid methyl ester and 0.53 g of NaOH in 25 cc. of methanol. Recrystallization from ether/hexane.
• the product is produced as described in example 18 from 17.5 g of 8-(4.5-diphenyl-3-methyl-2-oxo-4-imidazolin-1-yl) caprylic acid methyl ester and 2.1 g of NaOH in 100 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is produced as described in example 18 from 4.4 g of 9-[3-(4-chlorophenyl)-2-oxo-4-phenyl-4-imidazolin-1-yl] pelargonic acid methyl ester and 0.4 g of NaOH in 20 cc. of methanol. Further purification by chromatography on silicic acid gel using chloroform as eluant.
• the product is prepared as described in Example 48 from 1.5 g of 8-(4.5-diphenyl-3-methyl-2-oxo-4-midazolin-1-yl) caprylic acid, 0.55 g of thionyl chloride and 0.37 g of benzyl alcohol.

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• 1980
  • 1980-11-11 DE DE19803042466 patent/DE3042466A1/de not_active Withdrawn
• 1981
  • 1981-10-29 AT AT81109294T patent/ATE10626T1/de not_active IP Right Cessation
  • 1981-10-29 EP EP81109294A patent/EP0051829B1/fr not_active Expired
  • 1981-11-02 IE IE2565/81A patent/IE52079B1/en unknown
  • 1981-11-03 GR GR66407A patent/GR74703B/el unknown
  • 1981-11-06 US US06/318,962 patent/US4349684A/en not_active Expired - Fee Related
  • 1981-11-06 ZA ZA817696A patent/ZA817696B/xx unknown
  • 1981-11-09 DK DK495781A patent/DK495781A/da not_active Application Discontinuation
  • 1981-11-10 JP JP56179139A patent/JPS57108073A/ja active Pending

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